and northward were caribou connoisseurs. we can tell the difference between pregnant nonpregnant cows for example, or when the marrow changes flavor. calving is a special time. if you are caribou hunter, mother caribou whose curing the calf, she wants to lay down. she will lay down anywhere is/is not being threatened. it is the pregnant caribou that showed the least -- of hunted a lot of caribou, when they run away the pregnant cast a lane on the ground. they went away and come back. the nature of a caribou carrying the calf is different than regular caribou behavior. once development happens, if development happens, the facilities and pipelines are constructed to minimize the effects.